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A novel digital control method for dc-dc converter
Description
The purpose of this paper is to present a novel control method for the digitally controlled DC-DC converter and to improve the dynamic characteristics using the proposed simple control circuit. The feature is that the derivative control in the time-domain is combined to the FIR filter in the frequency-domain. As a result, it is clarified that the transient time and overshoot of the reactor current are suppressed to within 1.43 ms and 1.4 A and that these result is approximately 60% smaller than the conventional minimum phase FIR filter method, respectively. Moreover, it is revealed that the number of parts of the digital control circuit is 15% smaller than that of the analog control circuit and the cost is also 5% smaller.
Journal
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- 2008 13th International Power Electronics and Motion Control Conference
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2008 13th International Power Electronics and Motion Control Conference 2434-2438, 2008-09-01
IEEE